The resilience of deciduous hardwood forests with silvopastoral use with pigs

  • Funding: INIA (National Institute for Agricultural and Food Research and Technology) 
  • Leader: Francisco Javier silva Pando (INGACAL – Instituto Galego da Calidade Alimentaria – Galician Institute of Food Quality).
  • Sub-project at NEIKER: Isabel Albizu 
  • Implementation: 2016-2018

Description: An experimental module was set up in a Quercus faginea forest in the  Otazu Public Utility Forest (Vitoria-Gasteiz) with the silvopastoral use of pigs of the Euskal Txerria breed vs a mixed breed (Duroc x Landrace), reared under the same environmental, load (8 pigs/ha) and feeding conditions, in order to evaluate the environmental impact and its incidence on the sustainability of pig farms in the Basque Country.


1.- To analyse the effect of grazing on: a) The growth of adult trees and the damage caused by grazing in the regeneration of tree species. b) The biodiversity of the vascular flora of oak and chestnut groves: composition, structure and spatial distribution. c) The soil component: fertility, compaction, soil health, alteration of the microtopography.

2.- To assess the resources of the Ibero-Atlantic forest: a) To quantify the production of fruits and/or understorey biomass; b) Bromatological characterisation of the shrubby / sub-shrubby and herbaceous strata and fruit (chestnuts, acorns).

3.- To analyse the carbon cycle in the system based on its estimation in the various components

4.- To determine the influence of nutrition in an extensive diet on the production and quality of the different breeds of Celtic stock.

  1. To evaluate the biodiversity, carbon sequestration and soil health parameters as indicators of the functioning of the silvopastoral ecosystem